As long as companies will succeed in reducing their marketing costs using crowd-marketing this trend will continue, and will probably seep into other products and industries.
In any case, we (carats.io) have written a whole article about this phenomenon and why we chose not to have a bounty program.
You can read about it here >
https://www.carats.io/why-doesnt-carats-io-have-a-bounty-program/

Please feel free to join our telegram for more info :
https://t.me/caratsio